This is an attempt to organize at a very high level what we have learned about covid in the past three years. It is much more for myself than any broader audience, and is not a completely or extensively footnoted article; if I were going to provide cites for what is now largely common knowledge it would have to be a much longer and more extensively researched piece. I have generally stuck with moderate sources and information, attempting to avoid both denial and unreasonable fear.
The disease is real and the reality is enough.
Where sources conflict, for instance studies of the risk and incidence of long covid, I have attempted to chose plausible median data. This reflects both skepticism of extremes and of over-precision; many people demand precise numbers, and on these matters precise numbers are difficult to come by.
Once I post an article, I usually leave it standing with only minor changes, but in the case of this article I will correct errors as they are reported to me.